Manuale d’uso / di manutenzione del prodotto LA-351 del fabbricante Listen Technologies
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Dear Valued Customer, Thank you for choosing Listen! All of us at Listen are dedicated to provide you with the highest quality products available. We take great pride in their outstanding performance .
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LR-42/44 Design Guide LT-82 LA-140 LR-42/44 LA-350/351 Supplementary Design Guide LT-82 LA-140 Supplementary LR-42/44 LA-350/351 Design Guide Infrared Technology Overview 5 System Overview 6 Designing.
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Design Guide Design Guide Stationary Infrared Design Guide Table of Contents Infrared Technology Overview 5 S y s t e m O v e r v i e w 6 Designing a System 9 D e s i g n T o o l s 2 1.
Design Guide Design Guide Design Guide.
5 Design Guide Design Guide Infrared Technology Overview Infrared or “IR” technology uses infrared light to transmit audio without wires. This type of transmission is advantageous to RF transmission because it is secure, it is not susceptible to RF interference, and one receiver can be used for multiple rooms within a facility.
6 Design Guide Design Guide Design Guide System Overview 7KHUHDUHWKUHHPDLQFRPSRQHQWVRIDQ6WDWLRQDU,5VVWHPWKHWUDQVPLWWHUUDGLDWRUHPLWWHUDQGUHFHLY - ers. A single channel system consists of one LT-82 transmitter and one or more radiators.
7 Design Guide Design Guide Design Guide System Overview A multiple channel system consists of two to four LT-82 transmitters and one or more radiators. The diagram EHORZVKRZVVXFKDVVWHPZLWKWZRUDGLDWRUV7KHUDGLDWRUVDUHSRZHUHGIURPWKHSRZHUVXSSOIURPWKHÀUVW transmitter.
8 Design Guide Design Guide Design Guide System Overview Each LT-82 transmitter used can power up to two LA-140 radiators. If you design a system that requires more radiators than the transmitters can power, you need to order additional LA-205 power supplies.
9 Design Guide Design Guide Design Guide Designing a System You will need to order one LT-82 transmitter for each audio channel. The Listen system can deliver up to four audio channels simultaneously.
10 Design Guide Design Guide Design Guide Designing a System Horizontal Polar P attern V er tical Polar P attern Single Channel Sy stem Single Channel Sy stem.
11 Design Guide Design Guide Design Guide Designing a System In this example a total of four radiators , one in each corner , ensures good co verage at all loc ations and orientations. Exc ept in small rooms, it is recommended that at least tw o radiators are used to pre vent shading of the IR signal.
12 Design Guide Design Guide Design Guide Designing a System If there is an area within a room (such as under a balcony) that is shielded from the main radiation pattern, you will need to pro vide additional radiator(s) to co ver this area.
13 Design Guide Design Guide Design Guide Designing a System To double the radiator power, it is possible to vertically or horizontally mount two radiators together using the /$'XD.
14 Design Guide Design Guide Design Guide Designing a System 'HWHUPLQHWKHQXPEHURIUDGLDWRUVUHTXLUHGEDVHGRQWKHVL]HDQGVKDSHRIWKHURRP%DVHGRQVWHS.
15 Design Guide Design Guide Design Guide Complete the system layout worksheet for Power and RF cable lengths, delay compensation, required number of power supplies, and height and angle of radiators. Refer to the system layout worksheet example below.
16 Design Guide Design Guide Design Guide Designing a System 5A Cross out the LT-82 transmitters not required in your system. Cross out the L T -82 transmitters 5B Determine how many radiators will be used on each radiator daisy chain by reviewing the room layout work- sheet.
17 Design Guide Design Guide Design Guide Designing a System Complete the system materials worksheet that determines the quantity of each part number required for your VVWHP8VHWKH5RRPDQ.
18 Design Guide Design Guide Design Guide Designing a System 6D Since the radiator comes with most radiator mounting options, there are only two additional choices. Radiator Mounting Options The LA-342 dual radiator mounting bracket allows you to mount two radiators together (vertically or horizontally).
19 Design Guide Design Guide Design Guide Notes.
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21 LA-140 LT-82 Design Guide Design Guide Design Guide KEY L T-82 LA-140 RG-58 CA T-5 Room Layout Worksheet.
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Design Guide Design Guide System Layout Worksheet 23.
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25 LA-140 LT-82 Design Guide Design Guide Design Guide.
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27 Design Guide Design Guide Design Guide System Materials Worksheet T ransmitters Description Stationary IR T ransmitter Pow er Cord USA UK Euro Part Number L T -82-01 L T -82-02 L T -82-03 Quantity .
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33 LT-82 Design Guide Design Guide LT-82 LT-82 Package Contents • LT-82 IR Transmitter • LA-205 Power Supply • LA-89 IR Interconnection Cable ,56VWHP'HVLJQ*XLGHDQG8VHU·V0DQXDO • LT-82 Quick Reference Card /LVWHQ&RQÀJXUDWLRQV • LT-82-01 (North America) /78.
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35 LT-82 Design Guide Design Guide LT-82 /76SHFLÀFDWLRQV $UFKLWHFWXUDO6SHFLÀFDWLRQ 7KH6WDWLRQDU,57UDQVPLWWHUVKDOOEHFDSDEOHRIEURDGFDVWLQJRQIRXUPRQRR.
36 LT-82 LT-82 Design Guide Design Guide LT-82 LT-82 Block Diagram Universal Power Supply LA-205 (provided) 115/230V AC 50/60hz Power Supply CPU Module 30VDC, 1.
37 LT-82 Design Guide Design Guide LT-82 LT-82 Quick Reference 3RZHU212)) 7HVW7RQH$FWLYDWHVD tone to aid system setup ,QSXWDQG Adjust audio input levels of Input 1 and Input 2 here ,QSXW/HYHO,QGLFDWRUV6KRZV,QSXW and Input 2 levels.
38 LT-82 LT-82 Design Guide Design Guide LT-82 LT-82 Setup and Operating Instructions 1 Unpack the Product Remove outer packaging and plastic cover. Verify all components are present and no physical damage has occurred to the product.
39 LT-82 Design Guide Design Guide LT-82 LT-82 Setup and Operating Instructions 5 The radiator(s) can be powered by either the transmitter Power Output or remotely with a power supply (LA-205) near the radiator. If powering the radiator(s) with the transmitter, connect the transmitter Power Output to the radiator Power Input with CAT-5 cable.
40 LT-82 LT-82 Design Guide Design Guide LT-82 LT-82 Setup and Operating Instructions 7 Select Operating Channel 7A Select the operating channel (1-4). For single channel systems any channel can be used. In multi-channel systems each transmitter must be on a different channel.
41 LT-82 Design Guide Design Guide LT-82 8 Connect Audio Inputs 7KH/7KDVWZRDXGLRLQSXWRSWLRQV,QSXWDQG,QSXW,QSXWLVD balanced connection using either an XLR or 1/4” phono connector.
42 LT-82 LT-82 Design Guide Design Guide LT-82 10 Set Auto- Timeout F eature 10A If 30 minutes passes without audio to transmitter the unit will stop sending a signal to the r adiators 10B T o disable.
43 LT-82 Design Guide Design Guide LT-82 Accessories for LT-82 LA-326 Universal 5DFN0RXQWLQJ.LW Will mount up to two LT-82 units LA-112 RG-58 50 Ohm Coaxial Cable Specify length LA-70 CAT-5 Cable Specify length LA-72 RJ-45 to RJ-45 CAT-5 Coupler LA-115 5*%1&WR %1&&RXSOHU LA-71 RJ-45 CAT-5 Connector (Pkg.
44 LT-82 LT-82 Design Guide Design Guide LT-82 Notes.
45 LT-82 Design Guide Design Guide LT-82 Notes.
46 LT-82 LT-82 Design Guide Design Guide LT-82 Notes.
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LT-82 Design Guide Design Guide LA-140 LA-140 Package Contents • LA-140 Stationary IR Radiator • IR Radiator Quick Reference Card • 25 feet RG-58 Coaxial Cable • 25 feet CAT-5 Power Cable /LVW.
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53 LA-140 LT-82 Design Guide Design Guide LA-140 /$6SHFLÀFDWLRQV Specications LA-140 RF Fr equency R ange 1 MHz - 5 Mhz Input BNC C onnection.
54 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 Quick Reference 3RZHU5HG This red LED is lit when there is power to the radiator. 1R&RQQHFWLRQ<HOORZ This yellow LED is lit when the radiator is not connected to a transmitter or radiator.
55 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 Setup and Operating Instructions 1 Unpack the Product Remove outer packaging and plastic cover.
56 LA-140 LT-82 Design Guide Design Guide LA-140 6 Set T ermination S witch 6A Always set the termination switch to the “ON” position in single radiator systems. Single Radiator S ystems 7 If desired, the three LED indicators on the front of the radiator can be disabled using this switch.
57 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 Setup and Operating Instructions 8 If using a Listen LT-82 Transmitter with the Listen LA-140 Radiator leave this switch in the “OFF” position.
58 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator Over view 7KHUHDUHVHYHUDOGLIIHUHQWFRQÀJXUDWLRQVWKDWWKHUDGLDWRUFDQEHPRXQWHGLQ$.
59 LA-140 LT-82 Design Guide Design Guide LA-140 W all Box Mounting The wall box mount is a preferred mounting option for the LA-140 IR Radiator. The wall box mount al- lows secure mounting of the radiator as well as for allowing the necessary cables to be placed inside the wall.
60 LA-140 LT-82 Design Guide Design Guide LA-140 4 3XOO&$7DQG&RD[LDOFDEOHVWKURXJKKROHLQ:DOO%R[3ODWH Pull CA T -5 and Coaxial c ables through (if necessary) 5 Determine correct angle setting to use for the radiator using the design guide, see page 13 of design guide.
61 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator Hollow W all Mounting A hollow wall installation is not as preferrable as a wall box installation but can be done without problems.
62 LA-140 LT-82 Design Guide Design Guide LA-140 3 $WWDFK7LOW$UP´%µWR6ZLQJ$UPRIUDGLDWRUVZLQJDUPFRPHVDWWDFKHGWRUHDURIUDGLDWRUXVLQJLQFOXGHG0RXQWLQJ Hardware Screws. Any of the seven holes in Swing Arm can be used for this.
63 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator 8 Connect CAT-5 and Coaxial cables to appropriate locations on radiator. Connect CA T -5 and Coaxial cables 7 The radiator has a safety cable attached to the top of the swing arm.
64 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator Corner Mounting The radiator is mounted in the corner of a room with or without a wall box available for this use. A wall box must be at least four inches from the corner if using for this install.
65 LA-140 LT-82 Design Guide Design Guide LA-140 2 $WWDFK&RUQHU0RXQW%UDFNHWWR:DOO%R[3ODWHXVLQJLQFOXGHG Mounting Harware Screws.
66 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator 5 3XOO&$7DQG&RD[LDOFDEOHVWKURXJKKROHLQ:DOO%R[3ODWHLIQHFHVVDU.
67 LA-140 LT-82 Design Guide Design Guide LA-140 9 Connect CAT-5 and Coaxial cables to appropriate locations on radiator. Connect CA T -5 and Coaxial cables LA-140 – Mounting your Radiator 8 The radiator has a safety cable attached to the top of the swing arm.
68 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator Ceiling Mounting 'HVFULSWLRQ5DGLDWRULVPRXQWHGRQWKHFHLOLQJZLWKRUZLWKRXWDZDOO.
69 LA-140 LT-82 Design Guide Design Guide LA-140 2 3 $WWDFK7LOW$UP´%µWR6ZLQJ$UPRIUDGLDWRUVZLQJDUPFRPHVDWWDFKHGWRUHDURIUDGLDWRUXVLQJLQFOXGHG Mounting Hardware Screws.
70 LA-140 LT-82 Design Guide Design Guide LA-140 6 8 $WWDFK5DGLDWRUWR:DOO%R[3ODWHXVLQJ7LOW$UP´$µDQG7LOW$UP´%µ8VHWKH7LOW%ROWWRIDVWHQWK.
71 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator Desk/T able Mounting 5DGLDWRULVPRXQWHGWRDVXSSRUWEUDFNHWWKDWFDQEHVHWRQDQÁDWVXUIDFH7KLVLVDÁH[LEOHDQG non-permanent mounting strategy.
72 LA-140 LT-82 Design Guide Design Guide LA-140 3 Determine correct angle setting to use for the radiator using the design guide, see page 13 of design guide.
73 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator Microphone Stand Mounting Radiator is mounted on a standard microphone stand.
74 LA-140 LT-82 Design Guide Design Guide LA-140 4 Determine correct angle setting to use for the radiator using the design guide, see page 13 of design guide.
75 LA-140 LT-82 Design Guide Design Guide LA-140 LA-140 – Mounting your Radiator T ripod Stand Mounting Radiator is mounted on a tripod stand. If Listen part number LA-337 is used the radiator can be mounted up to nine feet high.
76 LA-140 LT-82 Design Guide Design Guide LA-140 3 $WWDFK7LOW$UP´%µWR6ZLQJ$UPRIUDGLDWRUVZLQJDUPFRPHVDWWDFKHGWRUHDURIUDGLDWRUXVLQJLQFOXGHGPRXQWLQJ hardware screws. The bottom hole in Swing Arm must be used for this install.
77 LA-140 LT-82 Design Guide Design Guide LA-140 Dual R adiator Mounting It is possible to mount two Listen LA-140 Radiators either side by side or on top of each other using the /$&apo.
78 LA-140 LT-82 Design Guide Design Guide LA-140 Accessories for LA-140 LA-112 RG-58 50 Ohm Coaxial Cable specify length LA-205 IR Extended Power Supply (powers two LA-140 radiators) 1RWH<RX.
79 LA-140 LT-82 Design Guide Design Guide LA-140 Notes.
80 LA-140 LT-82 Design Guide Design Guide LA-140 Notes.
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LA-140 LT-82 Design Guide Design Guide LR-42/44 Listen Part Number • LR-42 • LR-44 LR-42/44 User’s Manual Table of Contents LR-42/LR-44 4-Channel IR Receivers 6SHFLÀFDWLRQV .
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87 LA-140 LT-82 Design Guide Design Guide LR-42/44 /5,56WHWKRVFRSH5HFHLYHU6SHFLÀFDWLRQV $UFKLWHFWXUDO6SHFLÀFDWLRQ The IR stethoscope receiver shall be capable of receiving on four carriers (2.3, 2.8, 3.3, 3.8 MHz) and the channel shall be displayed on one of four front panel LEDs.
88 LA-140 LT-82 Design Guide Design Guide LR-42/44 /5/DQDUG,55HFHLYHU6SHFLÀFDWLRQV $UFKLWHFWXUDO6SHFLÀFDWLRQ The Lanyard IR Receiver shall be capable of receiving on four carriers (2.3, 2.8, 3.3, 3.8 MHz) and the channel shall be displayed on one of four front panel LEDs.
89 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42 Quick Reference 1 23 4 ,55HFHLYHU/HQV/HQVFRYHUVWKH IR receiving components, ensure entire lens is visible during use 3RZHU.
90 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-44 Quick Reference 1 23 4 ,55HFHLYHU/HQV/HQVFRYHUVWKH IR receiving components, ensure entire lens is visible during use 3RZHU.
91 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Setup Instructions 1 Unpack the Product Remove outer packaging and plastic cover. Verify all components are present and that no physical damage has occurred to the product.
92 LA-140 LT-82 Design Guide Design Guide LR-42/44 5HFKDUJHDEOH1L0+EDWWHULHV7RXVHUHFKDUJDEOH1L0+EDWWHULHVLQWKHUHFHLYHURXZLOOQHHGWRSXUFKDVH DQ1L0+.
93 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Setup Instructions 3 Connect an Earphone or Headset (LR-44 model only) An earphone or headset will connect to the jack on the bottom of the unit. Either mono or stereo connectors may be used with Listen receivers.
94 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Setup Instructions 5 The Select button is used to change the channel. Press the button once to change the channel. The unit will either seek or scroll through the channels depending upon which channel selection method you have enabled.
95 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Operating Instructions 127( 7KHIROORZLQJRSHUDWLQJLQVWUXFWLRQVEULHÁGHVFULEHKRZDXQLWRSHUDWHVEDVHGRQZKLFKSURJUDPPLQJIHDWXUHV have been enabled/disabled, with the factory default settings highlighted.
96 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Operating Instructions 2B Position the lanyard around the neck holding the unit below the chin of the user.
97 LA-140 LT-82 Design Guide Design Guide LR-42/44 3 Turn on the unit by pressing either button on the front of the receiver. T urn the Unit On 3A The unit will power up to the same channel that it was on when it was last turned off.
98 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Operating Instructions 4 LED Sleep Mode The receiver will shut off the channel indicator LEDs after a period of 10 seconds passes without any buttons being pressed. The receiver will still produce audio and the volume can still be adjusted, only the LEDs shut down.
99 LA-140 LT-82 Design Guide Design Guide LR-42/44 7 Checking Batter y L evel and Current Channel 7A Checking Battery Level LR-42/44 Operating Instructions Adjust V olume Level Use the control dial on the top of the unit to adjust the volume to a comfortable level.
100 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Operating Instructions 7B The channel the unit is currently on is represented by the corresponding LED in the channel indicator LEDs being lit (unless unit is in LED sleep mode).
101 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Locking Instructions The unit can be electronically locked on one channel so that it will not change channel even if the Select button is pressed.
102 LA-140 LT-82 Design Guide Design Guide LR-42/44 Program Mode Overview LR-42/44 Programming Instructions 7KHIROORZLQJIHDWXUHVFDQEHSURJUDPPHGZLWKLQWKHSURJUDPPRGH6WHUHR2Q2II&KDQQHO/RFN2XW Auto Seek and Squelch.
103 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Programming Instructions Program Mode F unctionalit y Diagram Use this chart to help with navigating through, and adjusting the features within, the program mode.
104 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Programming Instructions Channel Lock-Out “Sub -Mode ” Instruc tions While in Channel Lock-Out “Sub -Mode ” The channels that would.
105 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Programming Instructions Squelch Adjustment “Sub-Mode” Instructions While in Squelch Adjustment “Sub-Mode” There are 16 available squelch settings. The 16 settings are represented by binary code (refer to the chart below).
106 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Programming Instructions Resetting to Defaults It is possible to reset the unit to factory default settings and the unit must be in the program mode to be reset. 1 While in program mode, select the “Reset to Defaults” function and press the power button.
107 LA-140 LT-82 Design Guide Design Guide LR-42/44 Programming Examples Example #1 Enter Program Mode (see page 102) 1 :KHQSURJUDPPRGHLVHQWHUHGWKHÀUVWIXQFWLRQLVDFWLYHDQGWKH/('·VZLOOVKRZ Using the functionality chart on a previous page note that this is the Stereo On/Off Function.
108 LA-140 LT-82 Design Guide Design Guide LR-42/44 Programming Examples Example #3 Enter Program Mode. 1 :KHQSURJUDPPRGHLVHQWHUHGWKHÀUVWIXQFWLRQLVDFWLYHDQGWKH/('·VZLOOVKRZ Using the functionality chart on a previous page note that this is the Stereo On/Off Function.
109 LA-140 LT-82 Design Guide Design Guide LR-42/44 Programming Examples Example #5 Enter Program Mode. 1 :KHQSURJUDPPRGHLVHQWHUHGWKHÀUVWIXQFWLRQLVDFWLYHDQGWKH/('·VZLOOVKRZ Using the functionality chart on a previous page note that this is the Stereo On/Off Function.
110 LA-140 LT-82 Design Guide Design Guide LR-42/44 If you have Auto-Seek disabled (default setting) the unit scrolls to the next channel with each press of the Select button.
111 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Battery Charging Information The only way to charge the LA-364 battery packs is by inserting them into the LA-350 Charging Station. The battery packs can be charged while installed on the receiver or they can be charged while separate from the receiver.
112 LA-140 LT-82 Design Guide Design Guide LR-42/44 Place LR-42/LR-44 Receiver into a slot on the LA-350 case. Ensure that the LA-350 charging station has power to it.
113 LA-140 LT-82 Design Guide Design Guide LR-42/44 LR-42/44 Battery Charging Information Place LA-364 battery pack into converted tray of LA-350. Ensure that the LA-350 charging station has power to it.
114 LA-140 LT-82 Design Guide Design Guide LR-42/44 When the battery pack is fully charged the red LED will turn off and a green LED will light up to indicate battery pack is fully charged. The green LED will stay lit until the battery pack is removed from the charging station.
115 LA-140 LT-82 Design Guide Design Guide LR-42/44 Accessories for LR-42/44 LA-152 IR Alkaline battery compartment included with receiver LA-364 1,0+5HFKDUJHDEOH%DWWHU3DFN requires LA-350 Ch.
116 LA-140 LT-82 Design Guide Design Guide LR-42/44 Notes.
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LA-140 LT-82 Design Guide Design Guide LA-350/351 LA-350 Package Contents • LA-350 Charging/Storage Station • LA-204 Power Supply %DWWHU3DFN&RQYHUVLRQ7UDV • Cord Tidy Rack • LA-350 Quick Reference Card /LVWHQ&RQÀJXUDWLRQV • LA-350-01 (North America) /$8.
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123 LA-140 LT-82 Design Guide Design Guide LA-350/351 /$6SHFLÀFDWLRQV Features • Can charge or store up to eight LR-42 and/or LR-44 receivers at one time.
124 LA-140 LT-82 Design Guide Design Guide LA-350/351 /$6SHFLÀFDWLRQV • Can store up to eight LR-42 and/or LR-44 receivers at one time.
125 LA-140 LT-82 Design Guide Design Guide LA-350/351 LA-350 Charging Requirements/Instructions 1 Plug po wer supply into pow er source Plug power supply into power source.
126 LA-140 LT-82 Design Guide Design Guide LA-350/351 3A 3 T o Charge Batteries while in R eceivers Charging Scheme 1 Place receivers in charging slots. It may be necessary to press down on the units to ensure that they are touching the charging contacts.
127 LA-140 LT-82 Design Guide Design Guide LA-350/351 Place LA-364 battery packs in converted charging slots. Place LA-364 batter y packs in con verted charging slots 4 Verify batteries are charging. When units begin to charge a red LED will come on near the charging slot.
128 LA-140 LT-82 Design Guide Design Guide LA-350/351 LA-350/351 Cord Tidy Rack The Cord T idy Rack The Cord Tidy Rack can be used, if desired, to help with organizing the lanyard cords of the LR-44 receiver during charging or storage. Insert the tidy rack into the holes on top of the station to use.
129 LA-140 LT-82 Design Guide Design Guide LA-350/351 Notes.
130 LA-140 LT-82 Design Guide Design Guide LA-350/351 Notes.
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LA-140 LT-82 Design Guide Des i gn Gu i de Supplementary Supplementary Information Table of Contents Troubleshooting 133 Frequently Asked Questions 135 C o m p l i a n c e I n f o r m a t i o n 1 3 7 .
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137 LA-140 LT-82 Design Guide Des i gn Gu i de Supplementary Troubleshooting 7URXEOHVKRRWLQJ I believe my radiator has power but none of the LEDs on the front are on.
138 LA-140 LT-82 Design Guide D es i gn G u id e Supplementary Troubleshooting 7URXEOHVKRRWLQJ I cannot get my receiver to scroll to the channel I want to use. There are two reasons why the receiver would not scroll to the channel you want the unit to be on.
139 LA-140 LT-82 Design Guide Des i gn Gu i de Supplementary Frequently Asked Questions Q How many radiators can an LT-82 power? A Up to two radiators can be powered using an LT-82.
140 LA-140 LT-82 Design Guide D es i gn G u id e Supplementary Frequently Asked Questions Q ,ZDQWWRRFFDVLRQDOOWXUQRIIRQHRUPRUHFKDQQHOVLQDPXOWLFKDQQHOVVWHPEXW,GRQ·WZDQWWRKDYH to rewire the system every time I do this.
141 LA-140 LT-82 Design Guide Des i gn Gu i de Supplementary Compliance, Warranty and Contact Information &RPSOLDQFH,QIRUPDWLRQ The following compliance information applies to the LT-82, LA-140-GY, LA-140-WH, LR-42, LR-44 and LA-350.
Listen Technologies Corporation 14912 Heritagecrest Way %OXIIGDOH8WDK86$ +1.801.233.8992 +1.800.330.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Listen Technologies LA-351 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Listen Technologies LA-351 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Listen Technologies LA-351 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Listen Technologies LA-351 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Listen Technologies LA-351, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Listen Technologies LA-351.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Listen Technologies LA-351. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Listen Technologies LA-351 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
